The invention discloses a device for quickly clamping a universal tool, which comprises a supporting body, at least one pressing plate, a connecting plate, and a linkage mechanism, wherein the lower end of the pressing plate is provided with a strip for pressing a skew chisel or a straight chisel tightly together with the pressing plates; the linkage mechanism comprises a telescopic handle devicefor controlling the pressing plates to tightly press or loosen synchronously and a linkage ring; the telescopic handle device has a convex corner; and the linkage ring has a notch matched with the convex corner; and the convex corner is clamped in the notch. Thus, the front and back pressing plates can be controlled to operate synchronously by one linkage mechanism, the cost is saved and the device is more convenient; and the device for quickly clamping the universal tool is prevented from being contacted with special workpieces, and the working efficiency is improved.